| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.885 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Framework size controlled ordered mesoporous metallic MoO2 electrode for Lithium-ion batteries |
| 초록 |
Highly ordered mesoporous metallic MoO2 materials with bicontinuous Ia3d mesostructure were successfully synthesized by using ammonium molybdate tetrahydrate as a precusor and mesoporous silica KIT-6 as a hard template via nanocasting strategy. Ordered mesoporous silica KIT-6 with different pore diameters has been synthesized by controlling hydrothermal treatment temperature to identify how the critical dimensions of pore size and wall thickness are for control the rate of intercalation (electrode reaction) for lithium storage. By preparing a series of electrodes based on mesoporous MoO2 as the intercalation host, with wall thicknesses ranging from 4 to 8 nm, it has been possible to explore the influence of wall thickness on Li storage. The obtained mesoporous MoO2 material(meso-MoO2 -100) exhibits an anodic discharge capacity of 1814 mAhg-1 with an initial Coulombic efficiency of 72.1% for the first cycle, and a discharge capacity of 1607 mAhg-1 after 50 cycles at 0.1 C, which is much higher than its theoretical value of 838 mAhg-1. |
| 저자 |
박귀옥1, 손정국2, 정헌종1, 김경호1, 김지만1
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| 소속 |
1성균관대, 2삼성종합기술원 |
| 키워드 |
mesoporous; Molybdenium oxide; Li batteries
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| E-Mail |
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| 원문파일 |
초록 보기 |
